CN1734857A

CN1734857A - Reversible USB connector

Info

Publication number: CN1734857A
Application number: CNA2004100574375A
Authority: CN
Inventors: 姚立和
Original assignee: Individual
Current assignee: Atech Totalsolution Co ltd; A Data Technology Co Ltd
Priority date: 2004-08-13
Filing date: 2004-08-13
Publication date: 2006-02-15

Abstract

The invention relates to a USB joint capable of double-side plug-in, conductive contacts meeting USB specification are respectively formed on two sides of a circuit board, a frame plate is respectively arranged on two sides of the circuit board, each frame plate is provided with a plurality of longitudinal ribs, a hollow slit is formed between two adjacent ribs, the positions of the conductive contacts are exactly corresponding to the hollow slits, the USB joint can be inserted into the corresponding connecting port by using any side, the conductive contacts of the side can be correspondingly electrically contacted with conductive terminals in the connecting port, the ribs on the frame plate on the other side of the joint are abutted against metal elastic sheets in the connecting port, and the conductive contacts on the other side of the joint are ensured not to be contacted with the metal elastic sheets to cause short circuit.

Description

Double-side plug-in USB adapter

Technical field

The present invention relates to a kind of double-side plug-in USB adapter, refer to that especially a kind of tow sides all can constitute signal with USB standard connectivity port and contact and the two-sided joint of the USB of directionless restriction.

Background technology

The external interface device kind of personal computer is gradually abundant in recent years, keyboard, mouse, printer, scanner are early known, CCD camera, digital camera, MP3 walkman, external hard drive etc. are comed one after another, if can't satisfy user's needs only according to existing port arranged side by side and serial connection port, the release of USB interface can solve this problem undoubtedly.

The advantage of USB is as follows: at first it can support hot plug technology and plug and play function, the user can directly add on computers easily and increases ancillary equipment like this, and USB interface do not use the interruption controls of IRQ and the address resource of input and output, can link 127 equipment at most.In addition, another advantage of USB interface is that transmission speed is fast, and along with the USB2.0 standard birth of a new generation, the transmitting bandwidth of data has more remarkable expansion.

USB 2.0 (USB) is by all multi-vendor formulations of uniting, and comprises Compaq, Hewlett-Packard, Intel, Lucent, Microsoft, NEC and Philips.USB2.0 has increased the high speed data transfer pattern on prior USB 1.1 specifications.In USB2.0, two patterns of 1.5Mbit/s that in USB1.1, stipulates and 12Mbit/s, also increased this " at a high speed " pattern of 480Mbit/s (60MB/s), owing to increased fast mode, the range of application of USB is further enlarged, moreover, USB2.0 also has backward compatible characteristic, can use the cable of same specification in original USB 1.1 definition, the specification of joint is also identical, the excellent characteristic that under prerequisite at a high speed, has equally kept USB 1.1, and can in common the use any conflict not take place with USB 1.X equipment.

The just USB male joint of various ancillary equipment on the market at present, only can be inserted in the female connectivity port of USB with single face, if after this USB male joint upset, being subject to the interior block of usb connecting port is only supported, this male joint just can't be connected in female connectivity port, this block be provided with purpose be in order to ensure four in male joint conduction end points can be correctly with the connectivity port in four end points constitute corresponding contact, to avoid power end and earth terminal misconnection.

At some USB device, if only can be plugged in the connectivity port with single direction, will be extremely inconvenient when practical operation is used.For example, as shown in Figure 6, for the memory card that directly on the card body, is formed with the USB joint, be plugged in connectivity port on the register face if adopt single direction, block the side edge and may be subjected to the block of panel part and can't make the USB joint insert smoothly, this moment is if can make the USB joint change and adopt another side insertion connectivity port after the memory card upset, just can solve this problem, the USB joint of tool double-side plug-in function that hence one can see that can improve the convenience of device operation really.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of double-side plug-in USB adapter is provided, the tow sides of this USB joint all can constitute signal with USB standard connectivity port and contact.

For finishing aforementioned purpose, this double-side plug-in USB adapter comprises:

Deckle board on one is formed with several rib on it, form the lengthwise slit of a hollow out between two adjacent ribs;

One lower frame plate is formed with several rib that should the upper ledge plate, also forms the lengthwise slit of a hollow out between two adjacent ribs;

One circuit board with the multilayer line formation, clamping is between aforementioned upper and lower two deckle boards, and the positive and negative two sides of this circuit board one end all forms the conductive junction point of USB specification, and the position of those conductive junction points is corresponding to the hollow out slit place of upper and lower two deckle boards.

The USB joint of said structure can be inserted in the corresponding connectivity port with its arbitrary face, on the joint wherein the one side conductive junction point can constitute electric the contact with the conducting terminal of connectivity port, the rib of other face of this joint just can support on the metal clips that terminates in the connectivity port again, guarantee that other conductive junction point of face of joint is not contacted with this metal clips and causes short circuit.No matter insert the connectivity port with above-mentioned USB joint, all can constitute signal and link with positive direction or opposite direction, and non-directional restriction.

Description of drawings

Fig. 1 is an exploded view of the present invention;

Fig. 2 is each layer circuit layout card of the two-sided USB joint of the present invention circuit board;

Fig. 3 is a stereo appearance figure of the present invention;

Fig. 4 is the stereo appearance figure of the present invention after upset;

Fig. 5 is an operation chart of the present invention;

Fig. 6 is an existing operation chart with memory card of USB joint.

Symbol description among the figure

Deckle board 11 slits on 10

12 ribs, 13 location holes

20 lower frame plate, 21 slits

22 ribs, 23 positioning convex points

30 circuit boards, 31 conductive junction points

32 leads, 41 ground floor circuits

42 second layer circuits 43 the 3rd layer line road

44 the 4th layer line roads, 50 usb connecting ports

51 conducting terminals, 52 shell fragments

Embodiment

See also shown in Figure 1, double-side plug-in USB adapter of the present invention comprise with the insulation material constitute one on deckle board 10, a lower frame plate 20 and the circuit board 30 of a clamping between this upper and

lower deckle board

10,20.

Be formed with 12 lengthwise slits 11 that form one hollow out of several rib 12, two adjacent ribs in last deckle board 10; On the inner face on limit, last deckle board 10 two opposite sides, be provided with several location holes 13.

And deckle board 10 on the structure correspondence of aforementioned lower frame plate 20 also possesses the lengthwise slit 21 of several rib 22 and four road hollow outs; On average be provided with several positioning convex points 23 on the inner face on limit, lower frame plate 20 two opposite sides, it forms corresponding fixing with the location hole 13 of last deckle board 10 mat, and the periphery of two deckle boards can further utilize the ultrasonic waves technology to be closed admittedly.

This circuit board 30 be clamping between upper and

lower deckle board

10,20, this circuit board 30 wherein positive and negative two sides of an end all is formed with USB conductive junction point 31, and its other end promptly is connected with several wires 32, to constitute a two-sided USB joint; When circuit board 30 placed between the upper and

lower deckle board

10,20, the position of two sides conduction end points 31 was just corresponding to slit 11,21 places of upper and

lower deckle board

10,20.

See also shown in Figure 2, the circuit board 30 of aforementioned formation USB joint is the wiring design of multilayer, four layer line roads 41～44 are arranged as shown in FIG. altogether, be positioned at outermost first, fourth

layer line road

41,44 for forming aforesaid USB conductive junction point 31, second and third in putting two-

layer

42,43 respectively as ground strip (GND) and power supply sheet (VCC).This must Chen Ming a bit be that first,

fourth layer

41,44 wiring are that positive is handled (be white space do not have conductive material) on the drawing, and the Double Circle point representative that indicated of ground floor circuit 41 perforation that insulate.Otherwise, second and

third layer

42,43 is negative process (being that white space has conductive material), soft dot sign place represents the guide hole that is electrically connected with conductive material on it, the perforation and black circle is represented to insulate, so second layer circuit 42 most areas are ground connection, the 3rd layer line road 43 most of areas are power supply.

Connection between each layer line road is as follows: at first please refer to first, fourth two-

layer

41,44, four USB conductive junction points of circuit and be labeled as V (power supply), D1 (the first data pin), D2 (the second data pin) and G (ground connection) respectively according to its electrical characteristic.Two USB conductive junction point D1, D2 at ground floor circuit 41 are connected with a conductive hole a1, a2 respectively, and two conductive junction point D1, the D2 on the 4th layer line road 44 are connected with conductive hole a1 ', a2 ' respectively.Aforementioned two conductive hole a1, a2 are connected to conductive hole a1 ', the a2 ' on the 4th layer line road 44 via second and third

layer line road

42,43 correspondences, look if two-

layer circuit

41,44 is overlapping, conductive hole a1, a2 and a1 ', a2 ' will intersect mutually, connect so aforementioned two USB conductive junction point D1, D2 form correct correspondence.

The connection of the ground connection of ground floor circuit 41 is utilized the two contact area b1 of conductive junction point G, conductive hole b1 ', the b2 ' that the b2 correspondence is connected to second layer circuit 42, and its power supply connects the conductive hole c1 ' that is connected to the 3rd layer line road 43 with the contact area c1 correspondence of conductive junction point V.

The connection of the ground connection on the 4th layer line road 41 is utilized the two contact area b3 of conductive junction point G, conductive hole b3 ', the b4 ' that the b3 correspondence is connected to second layer circuit 42, and its power supply connects conductive hole c2 ', the c3 ' that is connected to the 3rd layer line road 43 with contact area c2, the c3 correspondence of conductive junction point V.

By interconnecting of aforementioned four layer line roads, form the joint that positive and negative two sides all has the USB conductive junction point, shown in Fig. 3,4, be the stereo appearance figure on positive and negative two sides of the present invention.It is looked in front with Fig. 3, the arrangement of the conductive junction point 31 on this USB joint is V (power supply), D1 (the first data pin), D2 (the second data pin) and G (ground connection) in regular turn, even if as shown in Figure 4, it is identical that the putting in order of the conductive junction point 31 on this USB joint is still after upset.

See also shown in Figure 5ly, be operation chart of the present invention.After the USB joint of this double-side plug-in is inserted in a usb connecting port 50, four metallic conduction terminals, 51 correspondences in the usb connecting port 50 and the wherein corresponding contact of four conductive junction points, 31 formations of one side of joint; Then conflict on the metal clips 52 of these usb connecting port 50 bottom surfaces as for other face of joint, cause short circuit so four conductive junction points 31 of face can't directly contact with shell fragment 52 because of outstanding rib 12.

In sum, double-side plug-in USB adapter of the present invention can be widely used in various On the electronic product, thus, this electronic product just can be selected suitable side when practical operation To the joint correspondence is linked in the connectivity port, moreover, joint design proposed by the invention, Its thickness reduces significantly compared to the thickness of existing USB joint that half (is about nearly 1.7～2.3mm), extremely be fit to be incorporated into the frivolous electronic product of thickness requirement (such as memory card), phase In existing USB joint design, the present invention obviously possesses obvious effect and promotes.

Claims

1. a double-side plug-in USB adapter is characterized in that, comprises:

One circuit board with the multilayer line formation, clamping is between aforementioned upper and lower two deckle boards, and the positive and negative two sides of this circuit board one end all forms the USB conductive junction point, and the position of those conductive junction points is corresponding to the hollow out slit place of upper and lower two deckle boards.

2. double-side plug-in USB adapter according to claim 1, wherein, the inner face that should go up limit, deckle board two opposite sides is provided with several location holes, and the inner face on this limit, lower frame plate two opposite sides is provided with several positioning convex points, and it forms corresponding combination with the location hole of last deckle board mat.

3. double-side plug-in USB adapter as claimed in claim 1 or 2, wherein, this circuit board has the design of four layer line roads, is positioned at outermost first, fourth layer line road and forms aforesaid USB conductive junction point, and second and third in putting is two-layer then respectively as ground strip and power supply sheet.

4. as double-side plug-in USB adapter as described in the claim 3, wherein, this USB conductive junction point comprises a power supply contact V, two data contact D1, D2 and a ground contact G; Wherein, after first, fourth two superimposed, data contact D1, the D2 on it is the intersection wiring.

5. as double-side plug-in USB adapter as described in the claim 4, wherein, the power supply contact on this ground floor circuit is connected to the 3rd layer line road via second layer circuit, and the ground contact on this ground floor circuit is directly connected in second layer circuit again.

6. as double-side plug-in USB adapter as described in the claim 5, wherein, the ground contact on the 4th layer line road is connected to second layer circuit via the 3rd layer line road, and the power supply contact on the 4th layer line road is directly connected in the 3rd layer line road again.

7. as double-side plug-in USB adapter as described in the claim 3, wherein, the periphery of this upper and lower deckle board utilizes the ultrasonic waves technology to be closed admittedly again.

8. as double-side plug-in USB adapter as described in the claim 3, wherein, the thickness of this joint is between 1.7mm～2.3mm.